Module: Pinyin

Defined in:
lib/pinyinator.rb

Constant Summary collapse

Regex = 
/(shuang|chuang|zhuang|xiang|qiong|shuai|niang|guang|sheng|kuang|shang|jiong|huang|jiang|shuan|xiong|zhang|zheng|zhong|zhuai|zhuan|qiang|chang|liang|chuan|cheng|chong|chuai|hang|peng|chuo|piao|pian|chua|ping|yang|pang|chui|chun|chen|chan|chou|chao|chai|zhun|mang|meng|weng|shai|shei|miao|zhui|mian|yong|ming|wang|zhuo|zhua|shao|yuan|bing|zhen|fang|feng|zhan|zhou|zhao|zhei|zhai|rang|suan|reng|song|seng|dang|deng|dong|xuan|sang|rong|duan|cuan|cong|ceng|cang|diao|ruan|dian|ding|shou|xing|zuan|jiao|zong|zeng|zang|jian|tang|teng|tong|bian|biao|shan|tuan|huan|xian|huai|tiao|tian|hong|xiao|heng|ying|jing|shen|beng|kuan|kuai|nang|neng|nong|juan|kong|nuan|keng|kang|shua|niao|guan|nian|ting|shuo|guai|ning|quan|qiao|shui|gong|geng|gang|qian|bang|lang|leng|long|qing|ling|luan|shun|lian|liao|zhi|lia|liu|qin|lun|lin|luo|lan|lou|qiu|gai|gei|gao|gou|gan|gen|lao|lei|lai|que|gua|guo|nin|gui|niu|nie|gun|qie|qia|jun|kai|kei|kao|kou|kan|ken|qun|nun|nuo|xia|kua|kuo|nen|kui|nan|nou|kun|jue|nao|nei|hai|hei|hao|hou|han|hen|nai|rou|xiu|jin|hua|huo|tie|hui|tun|tui|hun|tuo|tan|jiu|zai|zei|zao|zou|zan|zen|eng|tou|tao|tei|tai|zuo|zui|xin|zun|jie|jia|run|diu|cai|cao|cou|can|cen|die|dia|xue|rui|cuo|cui|dun|cun|cin|ruo|rua|dui|sai|sao|sou|san|sen|duo|den|dan|dou|suo|sui|dao|sun|dei|zha|zhe|dai|xun|ang|ong|wai|fen|fan|fou|fei|zhu|wei|wan|min|miu|mie|wen|men|lie|chi|cha|che|man|mou|mao|mei|mai|yao|you|yan|chu|pin|pie|yin|pen|pan|pou|pao|shi|sha|she|pei|pai|yue|bin|bie|yun|nüe|lve|shu|ben|ban|bao|bei|bai|lüe|nve|ren|ran|rao|xie|re|ri|si|su|se|ru|sa|cu|ce|ca|ji|ci|zi|zu|ze|za|hu|he|ha|ju|ku|ke|qi|ka|gu|ge|ga|li|lu|le|qu|la|ni|xi|nu|ne|na|ti|tu|te|ta|xu|di|du|de|bo|lv|ba|ai|ei|ao|ou|an|en|er|da|wu|wa|wo|fu|fo|fa|nv|mi|mu|yi|ya|ye|me|mo|ma|pi|pu|po|yu|pa|bi|nü|bu|lü|e|o|a)r?([1-5])/i
AntiRegex = 
/(ā|ē|ī|ō|ū|ǖ|Ā|Ē|Ī|Ō|Ū|Ǖ|á|é|í|ó|ú|ǘ|Á|É|Í|Ó|Ú|Ǘ|ǎ|ě|ǐ|ǒ|ǔ|ǚ|Ǎ|Ě|Ǐ|Ǒ|Ǔ|Ǚ|à|è|ì|ò|ù|ǜ|À|È|Ì|Ò|Ù|Ǜ)/
Vowels = 
{
  'a*' => 0,
  'e*' => 1,
  'i*' => 2,
  'o*' => 3,
  'u*' => 4,
  'ü*' => 5,
  'A*' => 6,
  'E*' => 7,
  'I*' => 8,
  'O*' => 9,
  'U*' => 10,
  'Ü*' => 11
}
Pinyin = 
{
  "1" => ['ā','ē','ī','ō','ū','ǖ','Ā','Ē','Ī','Ō','Ū','Ǖ'],
  "2" => ['á','é','í','ó','ú','ǘ','Á','É','Í','Ó','Ú','Ǘ'],
  "3" => ['ǎ','ě','ǐ','ǒ','ǔ','ǚ','Ǎ','Ě','Ǐ','Ǒ','Ǔ','Ǚ'],
  "4" => ['à','è','ì','ò','ù','ǜ','À','È','Ì','Ò','Ù','Ǜ'],
  "5" => ['a','e','i','o','u','ü','A','E','I','O','U','Ü']
}
AntiPinyin = 
{
  'ā' => 'a1',
  'ē' => 'e1',
  'ī' => 'i1',
  'ō' => 'o1',
  'ū' => 'u1',
  'ǖ' => 'v1',
  'Ā' => 'A1',
  'Ē' => 'E1',
  'Ī' => 'I1',
  'Ō' => 'O1',
  'Ū' => 'U1',
  'Ǖ' => 'V1',
  'á' => 'a2',
  'é' => 'e2',
  'í' => 'i2',
  'ó' => 'o2',
  'ú' => 'u2',
  'ǘ' => 'v2',
  'Á' => 'A2',
  'É' => 'E2',
  'Í' => 'I2',
  'Ó' => 'O2',
  'Ú' => 'U2',
  'Ǘ' => 'V2',
  'ǎ' => 'a3',
  'ě' => 'e3',
  'ǐ' => 'i3',
  'ǒ' => 'o3',
  'ǔ' => 'u3',
  'ǚ' => 'v3',
  'Ǎ' => 'A3',
  'Ě' => 'E3',
  'Ǐ' => 'I3',
  'Ǒ' => 'O3',
  'Ǔ' => 'U3',
  'Ǚ' => 'V3',
  'à' => 'a4',
  'è' => 'e4',
  'ì' => 'i4',
  'ò' => 'o4',
  'ù' => 'u4',
  'ǜ' => 'v4',
  'À' => 'A4',
  'È' => 'E4',
  'Ì' => 'I4',
  'Ò' => 'O4',
  'Ù' => 'U4',
  'Ǜ' => 'V4',
  'ü' => 'v',
  'Ü' => 'V'
}

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.accent_map ⇒ Object 



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# File 'lib/pinyinator.rb', line 82

def self.accent_map
  unless @accent_map
    @accent_map = {}
    stars = ('a*i a*o e*i ia* ia*o ie* io* iu* ' +
             'A*I A*O E*I IA* IA*O IE* IO* IU* ' +
             'o*u ua* ua*i ue* ui* uo* üe* ' +
             'O*U UA* UA*I UE* UI* UO* ÜE* ' +
             'A* E* I* O* U* Ü* ' +
             'a* e* i* o* u* ü*').split(' ')
    nostars = stars.map {|s| s.sub(/\*/, '')}

    nostars.each_with_index do |k, i| 
      @accent_map[k] = stars[i] 
    end
  end
  @accent_map   
end

.from_pinyin(string) ⇒ Object 



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# File 'lib/pinyinator.rb', line 120

def self.from_pinyin(string)
  string.scan(AntiRegex).each do |match|
    pinyin = match[0]
    string = string.sub(pinyin, AntiPinyin[pinyin])
  end
  string
end

.replacement_for(word, tone) ⇒ Object 



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# File 'lib/pinyinator.rb', line 100

def self.replacement_for(word, tone)
  word = word.gsub('v', 'ü').gsub('V', 'Ü')
  accent_map.each_pair do |base, vowel|
    if word.index(base)
      vowel_char = vowel.scan(/\w\*/)[0]
      vowel_num = Vowels[vowel_char]
      accented_vowel_char = Pinyin[tone][vowel_num]
      return replaced_word = word.sub(base, vowel).sub(vowel_char, accented_vowel_char)
    end 
  end
  match
end

.to_pinyin(string) ⇒ Object 



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# File 'lib/pinyinator.rb', line 113

def self.to_pinyin(string) 
  string.scan(Regex).each do |word, tone|
    string = string.sub(word + tone, replacement_for(word, tone))
  end
  string 
end

Instance Method Details

#from_pinyin ⇒ Object 



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# File 'lib/pinyinator.rb', line 134

def from_pinyin
  Pinyin::from_pinyin(self.to_s)
end

#to_pinyin ⇒ Object

instance methods



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# File 'lib/pinyinator.rb', line 130

def to_pinyin
  Pinyin::to_pinyin(self.to_s)
end